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47 results about "Lower Jaw Tooth" patented technology

Any of the teeth located in the mandible.

Implant guiding device for mandibular edentulous jaw and method for positioning implants

ActiveCN115531010BDental implantsDentistryLower Jaw Tooth
The present application relates to the technical field of dental medicine, in particular to a mandibular edentulous implant guiding device and an implant positioning and implanting method using the same, the implant guiding device comprising a first pin guiding ring, a rotating structure and two second pin guiding rings, the two second pin guiding rings being rotatably connected to the first pin guiding ring through the rotating structure, and the first pin guiding ring being located between the two second pin guiding rings; a planting guiding ring is arranged between the second pin guiding ring and the rotating structure, and the distance between the first pin guiding ring and the two planting guiding rings is 9-11 mm respectively. The first pin guiding ring is filled with a bone site pin, and the bone site pin is used for positioning; then, another bone site pin is used for positioning after adjusting the second pin guiding ring according to the shape of the human mandibular alveolar ridge, so that the distance between the planting guiding ring and the first top guiding ring is unchanged, the human mandibular alveolar ridge can be aligned for drilling and implanting the implant, and the operation quality and efficiency are improved.
Owner:罗穗锋

Dental assembly

PendingCN121337500AOthrodonticsLingual surfaceUpper teeth
The dental assembly comprises a first tooth socket and a second tooth socket which correspond to maxillary teeth and mandibular teeth respectively, and a plurality of retention structures, the first tooth socket is provided with a first buccal surface and a first lingual surface which are oppositely arranged, and the second tooth socket is provided with a second buccal surface and a second lingual surface which are oppositely arranged; the retention structures are connected with the first buccal surface and the second buccal surface, or the retention structures are connected with the first lingual surface and the second lingual surface, the dental assembly comprises a first half jaw and a second half jaw which are positioned on two sides of a dental midline, and the plurality of retention structures comprise a first retention structure and a second retention structure which are positioned on the first half jaw. The first retention structure is closer to the tooth midline than the second retention structure. According to the invention, relative rotation and relative movement of the first tooth socket and the second tooth socket are limited through cooperation of the first retention structure and the second retention structure, so that the relative position between the first tooth socket and the second tooth socket can be effectively controlled, and the correction effect can be effectively improved, such as in an application scene of jaw position adjustment.
Owner:WUXI EA MEDICAL INSTR TECH

Method of manufacturing a tooth alignment brace

ActiveCN113520634BOthrodonticsSnoring preventionDental patientsDental software
The present application provides a kind of dentition correction mouthpiece and its manufacturing method, which can be used for dental correction.The manufacturing method needs to obtain the tooth position configuration map of upper jaw and lower jaw, read and display the tooth position configuration map by dental software, connect the multiple fossae of upper jaw teeth into the arc line of upper occlusal line, connect the multiple cusps of lower jaw teeth into the arc line of lower occlusal line, generate a correction arc line through the upper and lower occlusal lines, then generate the upper jaw correction slot and the lower jaw correction slot corresponding to the cuspid-fossa, and finally generate the upper and lower jaw corresponding parts of the dentition correction mouthpiece to correct the problem of misaligned dentition of dental patients.
Owner:SHANGHAI FUTURE ORIGIN MEDICAL TECHNOLOGY CO LTD

Occlusion induction appliance for tooth replacement period, correction system for guiding jaw growth in tooth replacement period and design method of correction system

ActiveCN121400999AOthrodonticsLower dentitionLower Jaw Tooth
The invention provides an occlusion induction appliance for a tooth replacement period, an orthodontic system for guiding jaw growth in the tooth replacement period and a design method of the orthodontic system. The occlusion induction appliance for the tooth replacement period comprises an upper jaw tooth socket and a lower jaw tooth socket, a lower jaw brace; the intermaxillary connecting body is positioned between the occlusal surfaces of the back tooth areas of the upper jaw tooth socket and the lower jaw tooth socket; wherein the upper jaw tooth socket and the lower jaw tooth socket form a rigid integral structure which cannot move relatively on an occlusal surface through the intermaxillary connector; the intermaxillary connecting body has a preset thickness so as to open occlusion contact of upper and lower anterior teeth in a wearing state, and the intermaxillary connecting body is configured to lock the lower jaw tooth socket at a preset three-dimensional space position relative to the upper jaw tooth socket body; when the occlusion induction appliance for the tooth replacement period is worn, the upper dentition and the lower dentition serve as integral interactive anchorage, and the occlusion force is converted into the orthodontic force acting on the dentition or the jaw bone.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Handle assemblies with oscillator assemblies contained therein and teeth cleaning systems that utilize the same

A teeth cleaning system, which provides improved coverage or brushing area. The system includes an actuated tray comprises brushing elements. The brushing elements may be positioned to engage the front, rear, and top surfaces of the upper and lower jaw teeth. The actuation may be configured to oscillate the tray in a lateral direction which may brush all the surfaces of teeth simultaneously. Some embodiments include a higher density of bristles which increases the effectiveness of brushing. In addition, aspects of the system reduce the time spent brushing teeth.
Owner:FENO LABS INC

Back tooth arrangement method and device based on measurement of alveolar ridge intercrest line angle and medium

PendingCN121818150AImpression capsDental articulatorsDenture WearLower Jaw Tooth
The invention discloses a posterior tooth arrangement method and device based on measurement of an alveolar ridge intercrest line angle and a medium. The method comprises the following steps: acquiring an occlusion record of a patient; according to the occlusion record of the patient, establishing an upper and lower jaw edentulous jaw three-dimensional model of the patient; determining an occlusal plane of the three-dimensional model, and performing preliminary tooth arrangement on the three-dimensional model according to the occlusal plane; carrying out alveolar ridge intercrest line angle measurement on the three-dimensional model after preliminary tooth arrangement; and modifying the three-dimensional model after preliminary tooth arrangement based on an alveolar ridge intercrest line angle measurement result to obtain a posterior tooth arrangement scheme. According to the method, the included angle between the connecting line of the upper and lower jaw alveolar ridges and the occlusal plane is used as a basis for judging the arrangement mode of the back teeth, three-dimensional reconstruction is carried out on the oral cavity of the patient, digital measurement of the alveolar ridge intercrest line angle of the patient is completed in a computer, and the generated arrangement scheme of the back teeth can recover the relation between the upper and lower jaws of the patient more reasonably; the retention, the stability and the chewing performance of false tooth wearing are improved.
Owner:HOSPITAL OF STOMATOLOGY GUANGZHOU MEDICAL UNIVERSITY (YANGCHENG HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY)

Manufacturing method and application of digital buckle type guide plate for dental crown lengthening

PendingCN121667884AOthrodonticsBone trimmingCrown lengthening
The invention relates to the technical field of oral cavity plastic surgery, in particular to a manufacturing method of a digital buckle type guide plate for dental crown lengthening, which comprises the following steps of: 1, scanning an upper jaw dental arch and a lower jaw dental arch of a patient to obtain intraoral scanning data, recording an occlusion relationship at a maximum tooth tip staggering position, and exporting the data for later use; step 2, acquiring facial three-dimensional scanning data, alveolar bone and craniofacial structure data, digital facial arch data, mandibular position and mandibular movement parameters of the patient; 3, fitting various data to determine ideal gingival margin position parameters and bone trimming contour line parameters required in the operation; and 4, on the basis of the parameters determined in the step 3, buckle type guide plates are designed in design software, the buckle type guide plates comprise a gingival resection guide plate and an osteoplasty guide plate, and finally the buckle type guide plates are printed through a 3D printer. By implementing the buckle type guide plate prepared by the method, the stability, the accuracy, the operation convenience and the operation efficiency in the operation process of the dental crown extension surgery are remarkably improved.
Owner:HOSPITAL OF STOMATOLOGY SUN YAT SEN UNIV

A virtual occlusion detection and design method and system based on intraoral three-dimensional scanning

The application discloses a virtual occlusion detection and design method based on intraoral three-dimensional scanning and relates to the field of oral prosthetics. The application comprises the following steps: acquiring complete upper and lower dental arch data and static occlusion data of a patient in a static state; acquiring a dynamic motion trajectory of teeth by using the static occlusion data to correspond to the position of the teeth in a lower jaw motion in real time; combining the complete upper and lower dental arch data in the static state and the lower jaw motion trajectory to complete motion trajectory integration; drawing a boundary along a crown gum margin and an adjacent contact area in the static dental arch data to obtain a single tooth by segmentation; taking a crown cheek side as a common area, registering the segmented single tooth data to occlusion data one by one to obtain occlusion data after tooth-by-tooth registration; and designing a prosthesis based on the dental arch data and the occlusion data after tooth-by-tooth registration. The application can obtain accurate static and dynamic occlusion data and greatly improves the precision and efficiency of prosthesis design and production through automatic virtual occlusion detection and virtual adjustment.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY +1

Oral cavity opening size adjusting device for stomatology department examination

PendingCN121754115ADentistrySomatoscopeDental examinationLower Jaw Tooth
The oral cavity opening size adjusting device comprises a fixing frame and a measuring assembly, rotating seats are rotationally clamped to the two ends of the fixing frame correspondingly, through holes are formed in the rotating seats, a sliding rod and a threaded rod are slidably clamped in the two through holes correspondingly, and fixing blocks are fixedly connected to the bottom ends of the sliding rod and the threaded rod through longitudinal rods correspondingly; the measuring assembly comprises a guide rail connected between the two fixing blocks, a moving seat is slidably clamped on the outer side of the guide rail, and a pair of pneumatic rods are rotatably connected to one side, close to the guide rail, of the moving seat; the external shape of teeth of a patient can be measured by the measuring assembly and synchronized to the soft strip clamped in the shaping clamp, then the occlusion block is arranged in the extension direction of the soft strip and clamped to teeth of the lower jaw of the patient, and finally, the occlusion block is pulled through the fixing block so as to be matched with the fixing frame to open the oral cavity of the patient for auxiliary fixing.
Owner:THE 989TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

Dental measuring instruments

ActiveJP1820033SUpper Jaw ToothLower Jaw Tooth
This is a dental measuring tool used to check the degree of tooth grinding when grinding and capping teeth. As shown in the "Reference Front View," this tool consists of a gripping portion, an interocclusal measurement portion, and a grinding shoulder measurement portion. For example, when grinding and capping a lower jaw tooth, as shown in "Reference Figure 1 Showing the State of Use," the tip of the interocclusal measurement portion is inserted between the ground lower jaw tooth and the upper jaw tooth to measure the gap. Furthermore, as shown in "Reference Figure 2 Showing the State of Use," the grinding shoulder measurement portion is placed along the ground lower jaw tooth, and the shoulder (foot-like portion) of the lower jaw tooth is measured using the tip diameter of the grinding shoulder measurement portion, and the height of the lower jaw tooth is measured using the scale on the grinding shoulder measurement portion.
Owner:篠原 正气

Mouth floor genioglossus monitoring device

The utility model relates to the field of medical instruments, and discloses a mouth floor genioglossus monitoring device which comprises a retainer (10) and a monitor (20), the retainer (10) can be fixed on lower jaw teeth of a patient, the monitor (20) is connected to the inner side of the retainer (10), and the monitor (20) is connected with the retainer (10). The supporting surface (233) is used for supporting the tongue body of the patient; and the monitoring part (21) is used for being in contact with the genioglossus of the mouth floor of the patient to monitor an electromyographic signal of the patient. According to the utility model, the mouth floor electrode is in contact with the genioglossus surface for monitoring, so that the interference of the activity of adjacent muscular tissues on the monitoring result is avoided, and meanwhile, the monitoring mode is more easily accepted by a patient due to the noninvasive property of the monitoring mode. Compared with the prior art, the monitoring accuracy and the comfort level of the patient are improved to the maximum extent.
Owner:BMC MEDICAL CO LTD

Multi-arm open planting guide plate

The invention provides a multi-arm open-type implantation guide plate, and relates to the technical field of dental implantation, the multi-arm open-type implantation guide plate comprises a body fixed on upper and lower jaw dentitions or jaw bones and a guide plate sleeving the outer side of the body and used for positioning, and the middle of the guide plate is provided with a central platform for realizing stable positioning by using a multi-point plane stabilization principle. By means of a unique stable guide mode supported by multiple guide rails on the guide plate, implanting is completed under whole-course direct vision of a doctor, hard and soft tissue interference can be found in time in a fully-open implanting operation area, meanwhile, due to the strong supporting force of the multiple guide rails, the effect of correcting implanting drill bit deflection caused by different bone mineral densities in the implanting operation area is achieved, and the implanting efficiency is improved. The common planting hole type preparation difficulty caused by the friction resistance of the guide ring of the existing single-hole guide ring is avoided, and the heat generated in an operation area is reduced; secondly, a guide plate of a fully-open operation area formed by the device is combined with a water supply system on the implant dental handpiece to be matched with a water injection hole formed in the central platform to automatically spray water in multiple directions, so that the cooling efficiency is greatly improved, the implant cavity can be effectively prevented from being overheated, and the preparation efficiency is improved.
Owner:THE UNIVERSITY OF HONG KONG SHENZHEN HOSPITAL

Mixed reality navigation orthodontic bracket bonding device

ActiveCN223392536UArch wiresBracketsLower dentitionLower Jaw Tooth
The utility model provides a mixed reality navigation orthodontic bracket bonding device, relates to the technical field of oral medical instruments, and solves the problems that in the bracket bonding process in the prior art, bracket positioning is not accurate, registration is not good, time is wasted, the positions of the upper jaw and the lower jaw are not stable during operation, tooth surfaces are not exposed sufficiently, and the bracket bonding effect and efficiency are affected. Tooth sockets are formed in the upper surface and the lower surface of a jaw pad, the two sides of the jaw pad are connected with mouth gags through first connecting rods, the jaw pad is connected with an information plate through a second connecting rod, the information plate is provided with a two-dimensional code, and identification mark points are arranged on the surface of the two-dimensional code and the jaw pad. Quick registration and accurate positioning of the bracket are realized by matching the two-dimensional code and the identification mark point with mixed reality (MR) navigation equipment; meanwhile, by means of the jaw pad matched with the tooth body and the mouth gags on the two sides of the lip, the dentition of the upper jaw and the lower jaw is kept stable, more tooth surfaces are exposed, and therefore the orthodontic bracket can be better matched with MR navigation equipment, and accurate, efficient and convenient orthodontic bracket bonding is achieved.
Owner:SICHUAN UNIV

A clear aligner with a ramp module

ActiveCN224421180ULingual surfaceLower Jaw Tooth
Owner:无锡悦见医疗科技有限公司

A method for analyzing coordination of maxillary and mandibular dental arches based on oral cone beam CT

ActiveCN116138802BComputerised tomographsTomographyGonial angleLower Jaw Tooth
The application discloses a kind of upper and lower jaw alveolar arch coordination analysis method based on oral cone beam CT, specific steps are as follows: collecting patient cone beam examination data, it is exported as DICOM format, three-dimensional reconstruction is carried out using software;Head position calibration is carried out in software, and three-dimensional reference plane is established;Four quadrant of dental arch is positioned and marked, and four quadrant first molar impedance center point is positioned;Determine alveolar arch measurement plane;Determine four quadrant alveolar arch width measurement mark point;Mark point is projected to the same coronal reference plane, and is connected to form upper and lower jaw alveolar arch width coordination angle respectively, and the angle of upper and lower jaw alveolar arch width coordination angle is measured respectively;According to the angle of upper and lower jaw alveolar arch width coordination angle, whether the upper and lower jaw alveolar arch coordination is judged.The angle of measured double jaw alveolar arch width coordination angle can more accurately reflect the position relationship of upper and lower jaw first molar alveolar arch in horizontal direction;It has guiding significance to judge whether left and right alveolar arch is symmetrical.
Owner:SICHUAN UNIV

Device for intermaxillary fixation or fixation, enabling the immobilization of the upper and lower jaw of a patient in surgical or post-operative procedures.

PendingDE112024002846T5FractureWound clampsPuncture WoundForceps
A surgical device for intermaxillary fixation that shortens operating time, reduces the risk of lacerations and puncture wounds for the surgeon, and results in lower patient morbidity. It consists of a clamp or clasp made of titanium, surgical steel, or another biocompatible material, the free ends of which are positioned in the interdental space. One end of the clamp is placed in the interdental space of the maxilla and the other end in the interdental space of the mandible, so that once inserted, the clamp secures or fixes the maxilla to the mandible, preventing the patient from moving or opening it, thus achieving the goal of intermaxillary fixation. This clamp or device is operated and manipulated using forceps for easy application and removal from the teeth.
Owner:BRAVO AHUMADA RODRIGO AMBROSIO LA REINA

Snore stopping device

ActiveCN224085535USimple structureLightweight and less foreign body sensationSnoring preventionPhysical medicine and rehabilitationPhysical therapy
The utility model provides a snore preventing device which comprises an upper jaw tooth socket, a lower jaw tooth socket, a first positioning piece arranged on the upper jaw tooth socket, a second positioning piece arranged on the lower jaw tooth socket and matched with the first positioning piece, and a retaining jaw block fixedly arranged on the upper jaw tooth socket and used for preventing the lower jaw from retreating. The retaining jaw block is located behind the first positioning piece, the structure is simple, no additional assembly sliding block is needed, the retaining jaw block is integrally formed, and no additional assembly is needed; light foreign body sensation is small, and cleaning and carrying are convenient.
Owner:无锡悦见医疗科技有限公司

Shell-shaped dental instrument

ActiveCN223787720UOthrodonticsDental instrumentsLower dentition
The utility model discloses a shell-shaped dental instrument which comprises a first shell-shaped body and a second shell-shaped body, the first shell-shaped body and the second shell-shaped body are used for containing an upper dentition and a lower dentition respectively, and the first shell-shaped body and the second shell-shaped body are provided with a guide block and a guide block in a protruding mode in the direction opposite to the jaw on the occlusal face of a rear tooth area respectively. The guide surface of the guide block interacts with the guide surface of the guide block and guides the lower jaw to move from an initial position to a target position in the sagittal direction, an occlusal stabilizing part is arranged on the occlusal surface, facing the opposite jaw, of the guide block, and the occlusal stabilizing part is used for enabling the guide block and the second shell-shaped body to be stably occlusal at the target position in the sagittal direction when the lower jaw moves to the target position. An auxiliary occlusion part is arranged on the occlusal surface, facing the opposite jaw, of the guide block, the surface, facing the opposite jaw, of the auxiliary occlusion part is a plane, or the protruding height of the guide block meets the requirement that when the guide block is located at the target position, a gap is formed between the surface, facing the opposite jaw, of the auxiliary occlusion part and the surface of the corresponding occlusion position of the first shell body of the opposite jaw.
Owner:SHANGHAI SMARTEE DENTI TECH CO LTD

Image for displaying information about the intraoral scanner

ActiveJP1817923SIntraoral scannerLower Jaw Tooth
This product is an image for setting up the imaging, displaying setting information, and displaying and editing various information acquired by imaging when using an intraoral scanner (a device used primarily for imaging the oral cavity in dental treatment) to photograph the inside of the oral cavity. The "image diagram" shows the state when the upper jaw selection section is selected. When photographing the upper jaw dentition with an intraoral scanner, the imaging is performed with the upper jaw selection section selected. Also, when the upper jaw selection section is selected, information such as the image of the upper jaw acquired by imaging can be displayed in the captured image / various information display section. The "image diagram with the lower jaw selection section selected" shows the state when the lower jaw selection section is selected. When photographing the lower jaw dentition with an intraoral scanner, the imaging is performed with the lower jaw selection section selected. Also, when the lower jaw selection section is selected, information such as the image of the lower jaw acquired by imaging can be displayed in the captured image / various information display section.
Owner:J MORITA MANUFACTURING CORP

An orthodontic appliance with a one-piece molded deep flat guide

ActiveCN224421181ULower Jaw ToothBiomedical engineering
This utility model provides an orthodontic appliance with an integrally molded deep flat guide, including a maxillary brace and a mandibular brace adapted to the maxillary brace. An integral flat guide module is fixed to the lingual side of multiple anterior teeth of the maxillary brace. The width direction of the flat guide module extends along the palatal part of the anterior teeth. The flat guide module is integrally molded with the maxillary brace. By integrally molding the integral flat guide module, it extends from the palatal part of the anterior teeth to form a deep and long structure that has stable contact with the opposing anterior teeth.
Owner:无锡悦见医疗科技有限公司

A method for manufacturing a 3D printing resin filling guide plate

This invention relates to the field of dental restoration technology and discloses a method for fabricating a 3D-printed resin filling guide. In clinical practice, the affected tooth is prepared and color matched. Three-dimensional data of the patient's upper and lower jaw dentition and the prepared abutment tooth data are obtained through digital oral scanning, along with the occlusal relationship. The abutment tooth data includes the abutment tooth size, axial direction, and gingival margin morphology. The 3D-printed resin filling guide fabrication method provided by this invention, utilizing digital design and 3D printing technology, creates a resin filling guide that meets the patient's personalized needs. This fundamentally overcomes many drawbacks of existing dental resin restoration techniques, achieving precision, personalization, and minimally invasive dental resin restoration, while improving clinical operational efficiency and patient satisfaction with aesthetic treatment.
Owner:彭靖园

Net for preventing mistaken swallowing and aspiration in department of stomatology

ActiveCN224179827UFixedPrevent swallowing and aspiration accidentsDentistryMedical equipmentLower Jaw Tooth
The utility model discloses a mistaken swallowing and sucking prevention net for the department of stomatology. The mistaken swallowing and sucking prevention net comprises a flexible protection paste body. A waterproof back adhesive is arranged on the back surface of the flexible protection paste main body; an arc-shaped protruding part used for being attached to the upper jaw of the human body is formed at the front end of the flexible protection paste body. The two sides of the rear end of the flexible protection patch body are each provided with a long-strip-shaped protruding part, and each long-strip-shaped protruding part is divided into two attachment units which are used for being attached to the inner side and the outer side of the alveolar ridge of the lower jaw of the human body. A plurality of through holes are formed in the central position of the flexible protection paste main body. The main body structure of the protection paste is made of flexible materials, and the protection paste can be bent and cut at will; moreover, the whole net for preventing mistaken swallowing and aspiration is attached to the interior of the oral cavity of the patient and is well fixed by being matched with a sublingual anti-falling rope or an anti-falling support, and the device has the advantages of being flexible to use, small in occupied space and low in cost, can be used as a disposable medical instrument, and is high in sanitation and safety and easy to popularize and use.
Owner:SOUTHERN MEDICAL UNIV STOMATOLOGICAL HOSPITAL (GUANGDONG STOMATOLOGICAL HOSPITAL GUANGDONG DENTAL DISEASE PREVENTION & TREATMENT GUIDANCE CENT)

Method and device for adjusting accessory of orthodontic appliance, electronic equipment and storage medium

ActiveCN121533833BEliminate gapsImprove occlusal alignmentImage analysisOthrodonticsGonial angleLower Jaw Tooth
The application discloses an orthodontic appliance accessory adjustment method and device, electronic equipment and a computer readable storage medium, comprising: identifying a user's mandibular rotation reference point and the current position of the user's target teeth; determining the first rotation radius of the target teeth according to the current position and the mandibular rotation reference point; obtaining the standard thickness of the orthodontic appliance, and determining the mandibular rotation angle of the user according to the first rotation radius and the standard thickness; determining the correction amount of the orthodontic appliance on the teeth to be adjusted according to the mandibular rotation angle, the teeth to be adjusted being the teeth in the user's oral cavity other than the target teeth; and adjusting the height of the accessory corresponding to the teeth to be adjusted based on the correction amount, thereby achieving the adaptation of the accessory height of the orthodontic appliance and the correction amount, preventing the second molar from being passively pressed down due to point contact, improving the upper and lower jaw bite alignment, and ensuring that the upper and lower jaw teeth can stably bite and contact during the process of wearing the orthodontic appliance.
Owner:SHENZHEN AIMEISHI TECH CO LTD

A method and system for automatic full-mouth tooth alignment based on occlusal plane feature points

ActiveCN119251267BOral medicineEntire mouth
This invention relates to the field of oral medicine technology, and particularly to a method and system for automatic full-mouth tooth arrangement based on occlusal plane feature points. The method involves acquiring dental model information, scanning and automatically arranging teeth from both the upper and lower jaws, further acquiring the centroid coordinates of each tooth, the first limiting distance for each tooth, the feature points on each tooth surface, and the set allowed movement direction; pairing the upper and lower jaw teeth; aligning the z-axis of the centroid coordinates of each tooth pair; performing coarse registration of the tooth pairs based on the first limiting distance and the allowed movement direction; and completing fine registration of the upper and lower jaw teeth by constructing an objective function based on the point cloud data of the two teeth in the tooth pair. An objective function is also constructed based on the alveolar ridge crest line and the minimum distance between two adjacent teeth in the same jaw to optimize tooth arrangement. This invention prioritizes perfect occlusion of tooth pairs while optimizing tooth arrangement, improving the aesthetics and neatness of the tooth arrangement result.
Owner:ZHENGZHOU JIANER BUFAN TECH CO LTD

Dental instrument

ActiveCN223731518UOthrodonticsDental instrumentsLower Jaw Tooth
On one hand, the utility model provides a dental instrument which comprises a U-shaped base plate, U-shaped grooves capable of containing an upper jaw dentition and a lower jaw dentition are formed in the upper side and the lower side of the U-shaped base plate respectively, elastically-compressible occlusion blocks of a lattice structure are arranged at the positions, corresponding to teeth to be depressed, in the grooves, and under the action of occlusal force of a patient, the teeth to be depressed can be depressed. The occlusion block can be elastically compressed to generate rebound force capable of depressing the tooth to be depressed, the lattice structure can be elastically compressed in the direction of the pressure, and the geometric shape of the lattice structure in the direction perpendicular to the pressure is basically kept unchanged.
Owner:WUXI EA MEDICAL INSTR TECH

Orthodontic growth improvement method and system for teenagers based on bone development prediction

The invention provides a teenager orthodontic growth improvement method and system based on bone development prediction, and belongs to the field of image processing.The method comprises the steps that first malformation parameters of mandibular teeth of a patient are obtained according to distribution of pixel points of the lips and the edges of the mandibular teeth of the patient; mapping the mandibular teeth of the patient to the lips to obtain a lip section line of the mandibular teeth of the patient, combining the edge of the mandibular teeth of the patient to obtain an angle malformation parameter of the mandibular teeth of the patient, and combining the position distribution of the mandibular teeth of the patient, the first malformation parameter of the mandibular teeth of the patient, the age of the patient, the highest age of skeletal development and the growth rate constant of the skeletal; and obtaining a predicted value of the comprehensive malformation parameter of the mandibular teeth of the patient at each year old. The objective of the invention is to solve the problems that the subjectivity of the acquired malformation degree of the mandibular teeth of the patient is too strong and the accuracy is too low when the malformation degree of the mandibular teeth of the patient is judged mainly according to experience of a doctor through the image of the mandibular teeth of the patient at present.
Owner:Shenmu City Hospital

Method for repairing denture covered by titanium bracket

The invention provides a titanium stent covered false tooth repairing method which comprises the following steps: S1, acquiring digital three-dimensional data and occlusion relation of upper and lower jaw dentitions of a patient through digital oral cavity scanning; s2, performing digital design based on the data in the step (1), and adjusting parameters to obtain a restoration three-dimensional data model; s3, segmenting the three-dimensional data of the prosthesis according to parts to obtain digital data of the titanium metal stent, the sleeve inner crown and the sleeve outer crown; s4, designing a connecting handle; s5, the titanium metal support data are imported into 3D printing titanium additive equipment for manufacturing; s6, CAD / CAM mechanical cutting is adopted to manufacture an inner crown, an outer crown and a connecting handle of the sleeve; s7, the sleeve outer crown, the connecting handle and the titanium metal support are welded into a whole through a laser welding machine, and a denture covering titanium support is formed; and S8, trying on and adhering a titanium metal inner crown in the oral cavity of the patient. By means of the method, efficient and stable connection of the titanium support and the telescopic crown is achieved, and the accuracy and long-term retention force of a false tooth in-position path are improved.
Owner:彭靖园

Adjustable oral cavity vertical control orthodontic device based on memory material

PendingCN120753808AOthrodonticsLower Jaw ToothDentition
The invention relates to the technical field of orthodontics, in particular to an adjustable oral cavity vertical control orthodontic device based on a memory material, which comprises a lower jaw area, teeth, an upper and lower combined pad orthodontic integrated sleeve and an orthodontic appliance, the appliance is arranged on the inner side of the lower jaw area, and the appliance is tightly attached to the inner wall of the lower jaw area; the two ends of the appliance are arranged in a protruding mode, a combined pad correction integrated sleeve is fixedly connected to the upper portion of the protruding portion, and the upper and lower combined pad correction integrated sleeves are arranged on the outer sides of upper and lower jaw teeth in a sleeving mode. Supporting arc-shaped pieces are fixedly connected to the upper parts of the two sides of the central part of the appliance, and the other ends of the supporting arc-shaped pieces are inserted into the bearing mechanism; the occlusal pad correction integrated sleeve matched with a patient is manufactured according to the actual situation of the patient, the occlusal pad correction integrated sleeve is matched with the appliance, the appliance is used for applying supporting force to a dental arch, vertical regulation and control of the whole set of dentition can be achieved, and non-traumatic dentition depression is achieved by means of chewing force and elastic springback.
Owner:曲献文

Bone implant

ActiveCN223994999UDental implantsBone implantLower Jaw Tooth
The utility model discloses an intraosseous implant and relates to the technical field of intraosseous implants, the intraosseous implant is integrally formed, the uppermost part of the outer surface of the intraosseous implant is an upper plane, a first outer conical surface is adjacent to the outer side of the upper plane, and a first outer cylindrical surface is adjacent to the lower part of the first outer conical surface; a second outer circular conical surface is adjacent to the lower part of the first outer cylindrical surface, a second outer cylindrical surface is adjacent to the lower part of the second outer circular conical surface, a third outer circular conical surface is adjacent to the lower part of the second outer cylindrical surface, and a fourth outer circular conical surface is adjacent to the lower part of the third outer circular conical surface. According to the utility model, the outer diameter of the fourth outer conical surface is gradually reduced, so that the implant can be better placed into an alveolar bone, and therefore, the implant is easy or stable in the initial stage, and can be immediately implanted, and the treatment cycle of tooth extraction and tooth implantation can be shortened.
Owner:JIANGSU TRAUSIM MEDICAL INSTR